21852705

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{208121}}^1$

素因数の和:208136

約数の個数: 16

約数和(自身を含む): 39959424

約数和(自身を除く): 18106719

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 208121, 624363, 1040605, 1456847, 3121815, 4370541, 7284235, 21852705]

約数ペア:

[(1, 21852705), (3, 7284235), (5, 4370541), (7, 3121815), (15, 1456847), (21, 1040605), (35, 624363), (105, 208121)]